flatter oneself

• 自以为是； 自鸣得意

flatter oneself的用法和样例：

例句

1. Snobbishness, looking down on others, is one of the worst forms of rudeness, because it puts such a ridiculous value on oneself.
   热利眼，看不起人，是最糟糕的无礼行为之一，因为他们自以为是到可笑的地步。
2. He can flatter himself to no ends.
   他能够自鸣得意到没完没了。